Surfacing machine



Dec.9, 1930. v J, H, FOX 1,783,960

SURFACING MACH]: NE

Fil ed Oct 24, 1929 I 4 Sheets-Sheet 1 INVENTORS J. H. FOX ETAL SUM-AGING MACHINE Dec. 9, 1930.

Filed Oct. 24, 1929 .4 Sheets-Sheet 2 INVENTOR? Dec. 9,' 1930. J. H. FOX ET AL SURFACING MACHINE Filed Oct. 24, 1929 4 Sheets-Sheet 4 Illllllli \\\\\\\\\\\\\u\ Ill/Will of movement of the table. This'oscillation is accomplished bymeans of the motor 29 mounted on the floor at the side of the unit low and supplied with suitable abrasive through the flexible pipes 38. Secured to the lower ends of the work spindles are'the grindin g discs 39 preferably of cast iron and having openings through their centers through which the abrasive from the workspindles is sup plied to the surface of the glass. "Keyed to each of the work spindles is: a'pinion'40 and these'work spindles are all driven from a large spur gear 41 which is keyed tothe lower end of the drive shaft 23 e which extends through the sleeve 8. The work spindles and the grinding discs "carried thereby are facilitate the assembling of the parts carried thus driven from'the shaft 23 and, at' the same time, the casing 27 and thejlgrinding discs carried thereby are oscillated back and forth acrossthe line of movement of the table, thus distributing the, grinding action uniformly over the glass sheets on the tops of the table's moving beneath the: surfacing "unit. As indicated in Fig. 2, thefgear casing'27 is made in two sections suitably ribbedand secured together by means of the bolts 42 to by the casing and; including the'gearing.

Figs. 4 and 5 illustrate a modification in which theconstruction' follows that of Figs.

' v 1, 2 and3owith the exception thatthe gear casing 27' of Figs. 1,2 and 3 is made in two parts 43 and 44, eachof which carries three of the work spindles 45 and three of'the grinding discs 46. The 'gear sections '43yand 44 are each swivelled to the-sleeve 8 as; in the other .form of construction and" the 1 work spindles are driven in the same manner from the drive shaft 23, namely, by a la'rgespur gear 41 carried by the shaft 23 which engages the'pinions 40 'carri ed by the-work spindles. The gear casing sections 43;"and 44 are operatedby a pair of connecting rods 47 and 48 pivoted to" the gear casing'sat'49 and 50' and operated by any suitable 1 power means, such as that shown in "connection with Figs. 1,

Figs. 6 and? merely illustrate the changes whienmay be made in order to chan e the 7 grinding'unit into'apolishingunit; Inig.'6

thefs pindle 51 carries the usual polishing block- 52" faced with afelt sheet 53,;rouge and water being; employed -.inste'ad of the abrasive used with the grinding units of Flgs. 1, 2 and 3.

Fig. 7 illustrates a further modification in which each work spindle 54'is provided with a plurality of polishing blocks 55 pivotally mounted upo'naspider 56 carried by the lower end of the spindle 54. I -What we claim 1s H 1. In comblnation in a surfaclng machlne,

a work table mounted 'for'fright line movement, a'framework alongsidethe table, a surfacing unit comprlsing a vertlcal drive shaft i above the table, a vertical sleeve in which the shaft is journalled, means carried by the framework for supporting the sleeve for vertical movement and counterbalancing I it, a motor and. driving fconnectionstherefrom to the shaft mo'untedupon'the upper end ofthe sleeve',a gear c asing'swivelled upon the lower end of the sleeve, a pluralityof work spindles extending "vertically through the casing, a surfacing disc carried by each'spindle, and driving'mean's between the'lower end of the drive shaft and the spindles,a motor'at the side of the table, and connections between the motor and casing to carrythe surfacing discs back and forth transversely of the line of movement ofthe table; 1 2; Incombination in a surfacin machine, awork'table mounted for right ine m0ve-' shaft abovethe table, vertical sleeve in which the shaft is journalled, means carried byfthe framework for supporting the sleeve" for vertical movement and counterbalancing it,j a motor 1 and driving connections 'therezfrom to the shaft mounted upon the upper upon the lower end of the sleeve, a plurality of work spindles extending" vertically through the casing, a surfacing disc carried by each spindle, and driving means between the lower endof the drive shaft andthe spindles, a motor at the side of the table, and con- ,nections between the motor" and the gear cas- 9 In ent, a framework alongside the table, a 1 surfacing 111'11t comprlslng a vertical dI'lVB rend ofthe sleeve, a gear casing swivelled ing, and including a crank and connecting 1 rod for oscillating such casing to carry the surfacing discsbackjand forthtransversely of th'e'line of movement of the table.

3;In combination in a surfacing machine a worktable.mountedforright.'line move- 5 ment', a framework alongside the table, a surfacing "unit. comprising" a 9 vertical drive shaft "above the table, a vertical sleeve .in

which the shaft isjournalled, means carried by the framework for supportingthe sleeve for vertical movement E'and connterbalancing it a motor and driving connections therefrom to the shaft mounted upon the upper end of the sleeve,"a gear casingswivelledupon the 7 lower end of the sleeve, a plurality of work spindles extending'vertically through the. casi Y ing,"a surfacingdisc carried by each spindle, and;driving meansbetweenthe lower end of 

